I. OED, the /ˌəʊ iː ˈdiː/ BrE AmE abbreviation for
the ↑ Oxford English Dictionary
II. ˌOxford ˌEnglish ˈDictionary, the BrE AmE abbreviation , OED
a very large dictionary of English, started in the 1880s, which is known for its completeness and for its explanations of the origins of words and their history. It is available either as a book in several large ↑ volume s , or as a ↑ CD-ROM .